Spray Foam Insulation in Fenton, MO

Find top-rated spray foam contractors and save up to 35% on energy bills

Compare 7 verified spray foam insulation contractors serving Fenton, Missouri, backed by 1,239 customer reviews averaging 4.9★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Fenton contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 35% — get free quotes and read verified reviews below.

💰 Spray Foam Savings Calculator for Fenton

Homes in Fenton typically cut energy use by 30%–40% with spray foam. Change the numbers below to fit your home.

Foam type
$1,596
Estimated annual savings
At about 35% off your energy bill
$5,100–$8,200
Rough install cost
Attic roofline, about 5.5" of open cell
3–5 years
Estimated payback
Install cost ÷ annual savings

These are estimates, not quotes. Actual savings vary based on home size, current insulation, energy rates, and climate conditions. Savings estimates are based on Department of Energy data for the Cold climate zone. Cost assumes the attic roofline (about 1.15× your home's square footage) at typical installed prices of $0.40–$0.65 per board foot for open cell and $1.00–$1.50 for closed cell; a two-story home has less roof and usually costs less. Get quotes from the contractors below for real prices.

Verified Contractors in Fenton

5⭐
3 Google reviews

Recent Reviews:

John Hamdan★★★★★2 years ago

Matt is super nice, very professional, very knowledgeable and has been doing it for a very long time. He and his crew did a fantastic job on our garage attic installation job. Definitely feel a difference in temperature. Well worth the money spent.

Aiden Starr★★★★★7 months ago

Maryland Insulation Solutions Outstanding insulation service that delivered immediate comfort and noticeable energy savings!

James Martin★★★★★7 months ago

Maryland Insulation Solutions Outstanding insulation service that enhanced comfort and lowered our energy bills!

5⭐
152 Google reviews

Recent Reviews:

Chris Carr★★★★★4 months ago

Read the Google Reviews and decided to approach West County Insulation for my historic home re-insulation after water and mold damage. They did a phenomenal job talking options with me for eco-friendly and something that would allow the home to breath appropriately. Could not beat the price and level of service and professionalism. Used them for cellulose batting and blow-in for the attic spaces beyond the bedroom walls. Cannot recommend them enough.

Sahar Joakim★★★★★2 months ago

I am so glad I contacted West County Insulation for a second opinion. Brandon S had great communication, so friendly (but not tooo friendly). Super professional, intelligent. Was he a sales person? Felt like he was just there to take photos and explain how to make my attic insulation more effective. I'm hiring the company to redo my insulation (just had to come on here and rave about the sales rep!) I'll update the review if the labor is not fittingly excellent

Caitlind Walker★★★★★2 months ago

West County insulation did an incredible job with removing and replacing our attic insulation! They quickly got us competitive a quote and Brandon was excellent explaining the process and working with us to reschedule installation when our electrical work took longer than expected. David and Isaac performed the insulation removal and installation: both were kind, informative, and left the area around our attic and stairs cleaner than when they came! Highly recommend this company for any insulation needs.

5⭐
144 Google reviews

Recent Reviews:

Jeff Thompson★★★★★2 months ago

I-foam did a great job on my shop! The fellas that showed up were professional and were done in no time. I will definitely be using them for future projects.

Carrie★★★★★2 months ago

I was extremely pleased with this whole process. From Scott and his team coming out to give the bid to the two gentlemen that came out to do the install of my insulation. Very professional and worked very quickly. Paid very close attention to detail and explained steps as they went. You will not be dissatisfied at all if you choose this company. They were also very affordable. Thank you Scott and your entire team for such a great job. I will make sure that I share my experience with friends.

Nathan Voorhees★★★★★a month ago

They were able to do blown in insulation in my basement finish for the same price as the material costs for rockwool insulation. They were great during scheduling and completed the work very quickly. 10/10 wood recommend!

Recent Reviews:

Faith Missler★★★★★2 weeks ago

My husband and I had a great experience with Koala Insulation. They showed up on time for our appointment, charged us a great price, and were in and out in about an hour for the actual service. They even cleaned up like they were never there! Wish all businesses were so easy to work with. Highly recommend!

David Binaei★★★★★a week ago

its always great when someone does such a stellar job and everything goes smoothly, definitely a big relief. Brianna was amazing through out whole insulation press she really made it difference when everything streamlined and well coordinated. great company wonderful staff.

Bill A★★★★★a month ago

Koala give a free assessment. In the quoting process they go over every aspect of the attic space and what it needs and nice to haves. They gave me a few different options in the quote to best suite my budget and what I wanted. The work was done about a week ago at time of this review. I think it will be hard to quantify the effect right of way adding insulation to the attic, but it is supposed to help keep hot air out of the house in the summer and keeping the heat in in the winter. I am pleased with how professional both the quoting person and the install crew were.

4.9⭐
177 Google reviews

Recent Reviews:

Terry Garrabrant★★★★★6 months ago

I cannot say how great these people are. It was a last minute Schedule to get done They were able to work around the last Minute request. I had to get my sighting replace. I've been waiting for a year and they finally said we're here to do it, so that was the perfect time when everything was off to get it insulated. Thank you so much for the hard work.I noticed it as soon as I get Home.The back bedroom was 5 to 10 degrees cooler

Jesse Nobbe★★★★★2 weeks ago

Foam Co. was very easy to work with. We had new insulation blown and sprayed in. They were able to get it done in a day and went above and beyond providing pictures of the install and working independently. They communicated promptly and clearly throughout the process.

James Lee★★★★★2 months ago

Very professional company from the beginning of the project to it's completion. Every person was nice and respectful. When they say the workers will start at 7am that is what they ment. They blew in our new insulation. They came right in, introduced themselves and got to work. The project did not take long at all and they cleaned up behind themselves. The price for the job was nice too. If we need any more work done we will be calling them again . James and Brenda Lee

4.9⭐
184 Google reviews

Recent Reviews:

Christiane Remorin★★★★★a month ago

Mindy, came and explained the process… The guys who installed were fast and left no cellulose mess behind… the price was affordable! Can’t be happier with Foam Engineers and their staff.. referred them to my neighbor who’s getting her attic done too!

Kellee Wright★★★★★3 weeks ago

Foam Engineers has exceeded my expectations. I’m a project manager for a home renovation company and have worked with Foam Engineers on my last two projects. Their pricing is very competitive, and their service is outstanding. Dave and his crew installed both spray foam and batt insulation on my most recent project. They were prompt, professional, and maintained excellent communication throughout the process. They went above and beyond in both scope and execution. I’ll continue to use Foam Engineers for future projects and have already recommended them to my colleagues.

Leslie Morton★★★★★3 months ago

Very impressed from start to finish with Foam Engineers! Mindy came out for the estimate and was extremely thorough in explaining the process of installing cellulose insulation and the resulting benefits. The estimate was very detailed, including photos.The installation took place yesterday and we had a fabulous crew! Alex was the lead and impressed me with his knowledge and professionalism. Colin, Dylan, and Tony were all very competent and skilled workers as well. All were committed to the successful completion of the project in a timely manner. I had to run an errand and felt comfortable leaving the guys on their own. Mindy dropped by during the installation. Her attentiveness and follow-up were very much appreciated. I wouldn't look further than Foam Engineers for your insulation needs. Bravo to Mindy and the crew of four - thank you for a job well done!

4.5⭐
15 Google reviews

Recent Reviews:

Matt Wieland★★★★★8 months ago

This is the third home I've had done by Aladdin and it was wonderful as usual. They put an additional amount of insulation in the attic and brought it to r49. They added insulation to the garage. They also spray close cell phone insulation on the sill plate in the basement in my house I can already tell seems to be warmer. Another wonderful job!

Lanelle Schultz★★★★★a year ago

This is a trucker review: Super nice people! I arrived during the night. Gentleman knocked on my door and said "as soon as you're ready I can get you unloaded". It's a small area but they left spots open so it's easy to maneuver. Offered me coffee, bathroom, water, or if I needed anything else. Hope I get to deliver here again.

Sarah Bonstead★★★★★4 years ago

From the estimate to service look no further ! Honest and hard working crew. Jason and Brad made sure my attic looks like a Winter Wonderland.

Frequently Asked Questions — Spray Foam Insulation in Fenton

These are the questions Fenton homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 35% typical energy savings. Compare the 7 verified Fenton contractors above for exact quotes.

How much can spray foam insulation save on heating and cooling bills in Fenton?▼
Homeowners in mixed climates like Fenton, MO typically see 20–30% reductions in total energy costs after spray foam installation. The savings come from both reduced heating in winter and reduced cooling in summer. The exact savings depend on your home's current insulation, size, and local energy rates, but most homeowners recoup the investment within 3–6 years.
Is spray foam better than fiberglass insulation for homes in Fenton?▼
For most homes in Fenton, MO, spray foam outperforms fiberglass significantly. Fiberglass batts insulate but do not air seal — meaning conditioned air still escapes through gaps. Spray foam both insulates and creates an airtight seal, addressing the root cause of energy loss. While spray foam costs more upfront, the performance difference in mixed climates makes it the better long-term investment for most homeowners.
Is spray foam insulation worth the cost?▼
For most homeowners, yes. Spray foam creates an air-tight seal that traditional insulation cannot match, reducing energy bills by 15–35% annually. It also adds structural rigidity, acts as a moisture and vapor barrier, reduces outside noise, and can increase home resale value. The higher upfront cost compared to fiberglass is typically recovered within 3–7 years. One important note: because spray foam creates a very tight building envelope, proper mechanical ventilation is important to maintain healthy indoor air quality and prevent interior moisture buildup. This is typically handled by an Energy Recovery Ventilator (ERV) — a system that brings fresh outside air in while pushing stale air out, recovering the energy from the outgoing air so you don't waste what you paid to heat or cool — or a Heat Recovery Ventilator (HRV), which works similarly but is optimized for cold climates. A qualified contractor will assess whether your home needs ventilation upgrades as part of the installation.
How much does spray foam insulation cost in Fenton, MO?▼
In Fenton, MO and the surrounding area, spray foam insulation typically costs $1.00–$3.00 per square foot installed, depending on the type and your home's specifics. Open-cell foam runs $0.44–$0.65 per board foot, while closed-cell foam costs $1.00–$2.00 per board foot. A typical 2,000 sq ft home attic in Fenton costs $2,000–$6,000. Most Fenton homeowners recoup this investment within 3–7 years through energy savings of 15–35% annually.
What is the difference between open-cell and closed-cell spray foam?▼
Open-cell spray foam is softer, less dense, and less expensive. It expands significantly and is ideal for interior walls, attics, and soundproofing. Closed-cell spray foam is denser, stronger, and provides a moisture barrier — making it better for exterior applications, crawl spaces, and areas prone to flooding or humidity. Closed-cell also has a higher R-value per inch (R-6 to R-7 vs R-3.5 to R-4 for open-cell). One key difference: open-cell foam allows some vapor movement, while closed-cell acts as a vapor barrier — an important consideration for your home's ventilation needs.
How long does spray foam insulation last?▼
Spray foam insulation is one of the most durable insulation options available, with a lifespan of 80+ years when properly installed. Unlike fiberglass batting which can sag and settle over time, spray foam maintains its shape and insulating properties indefinitely. It will typically outlast the building it is installed in.
How do I find a qualified spray foam insulation contractor in Fenton, MO?▼
When searching for a spray foam contractor in Fenton, MO, look for ones who are licensed, insured, and have verifiable reviews. Spray foam requires specialized equipment and training — improper installation can cause off-gassing, adhesion failure, or fire hazards. Ask for references, verify their insurance, and get at least 2–3 quotes. A qualified Fenton contractor will also assess your home's ventilation needs — a tightly sealed spray foam installation requires adequate mechanical ventilation to prevent moisture and indoor air quality issues. FoamMatch pre-screens all listed contractors in Fenton for licensing and insurance so you can compare verified professionals in your area.
How long does spray foam installation take?▼
Most residential spray foam jobs take 1–2 days depending on the size of the area. A standard attic takes 4–8 hours. After spraying, the foam cures within 24 hours, though most contractors recommend waiting 24–72 hours before occupying the space due to off-gassing during the curing process.
Does spray foam insulation need to be replaced?▼
No — spray foam insulation does not need to be replaced under normal circumstances. Unlike fiberglass insulation which degrades over time, spray foam maintains its R-value and air sealing properties for the life of the building. The only reasons to remove or replace spray foam are water damage, renovation work, or improper original installation.

Spray Foam Contractors Near Fenton, MO

Not finding the right fit in Fenton? Many spray foam contractors travel to nearby towns. These communities within about 60 miles all have verified contractors listed.